I Will End Where I Begin

Notes

Snape said nothing, but merely looked up at Dumbledore.
"Hide them all, then," he croaked. "Keep her- them- safe. Please."
"And what will you give me in return, Severus?"
"In- in return?" Snape gaped at Dumbledore, and Harry expected him to protest, but after a long moment he said, "Anything."